Răspuns :
2/3×15/8+3/2÷2 = 10/8 + 3/4 = 10/8 +6/8 = 16 /8 = 2 inversul 1/2 iar opusul -2
[tex] \frac{2}{3} \cdot \frac{15}{8} +\frac{3}{2}:2=\\
\frac{5}{4} + \frac{3}{2} \cdot\frac{1}{2}=\\
\frac{5}{4} +\frac{3}{4}=\frac{8}{4}=2
[/tex]
Inversul este [tex] \frac{1}{2} [/tex]
Inversul este [tex] \frac{1}{2} [/tex]